206871 has 8 divisors (see below), whose sum is σ = 315264. Its totient is φ = 118200.

The previous prime is 206827. The next prime is 206879. The reversal of 206871 is 178602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206871 - 2⁶ = 206807 is a prime.

It is a super-2 number, since 2×206871² = 85591221282, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4905 + ... + 4946.

It is an arithmetic number, because the mean of its divisors is an integer number (39408).

2²⁰⁶⁸⁷¹ is an apocalyptic number.

206871 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

206871 is a deficient number, since it is larger than the sum of its proper divisors (108393).

206871 is an equidigital number, since it uses as much as digits as its factorization.

206871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9861.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 206871 is about 454.8307377476. The cubic root of 206871 is about 59.1425262448.

The spelling of 206871 in words is "two hundred six thousand, eight hundred seventy-one".